Rihanna, Jay Sean, Birdman party with Cash Money Records

Rihanna, Jay Sean, Birdman join UK stars to celebrate Cash Money Records in London.

Rihanna, Jay Sean and Birdman and Ice T joined JLS, Alexandra Burke, Alesha Dixon, Jamelia, Craig David, The Saturdays and other major UK stars to celebrate Cash Money Record's first ever party outside the US.

The super-heavyweight US hip hop label, whose premier artist Lil Wayne invented the word 'bling', spared no expense for the lavish party at The Royal Exchange in the heart of the City.

Almost 500 people enjoyed free-flowing champagne from 9pm until 3am courtesy of the co-founders of Cash Money Records, Bryan "Birdman" Williams and Ronald "Slim" Williams - at the party, reputed to have cost over £100,000.

Birdman, Slim and Jay Sean, the most successful male UK urban artist in US chart history, set the tone by arriving in matching Rolls Royce Phantoms and held court whilst drinking Cristal amongst the party guests, with UK artists clamouring to meet them.

At midnight, Jay Sean and Birdman thanked the partygoers for the UK's support of Cash Money Records with a live performance of Jay's Number One single - 'Down'.